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Trade and other receivables, net - Orbital receivables (Details)
$ in Millions
6 Months Ended
Jun. 30, 2020
USD ($)
customer
Dec. 31, 2019
USD ($)
Trade and other receivables    
Orbital receivables, net $ 354 $ 382
Number of customers | customer 14  
Impairment to long-term orbital receivables $ 14  
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Allowance at the beginning of the period (35)  
Additions (14)  
Allowance at the end of the period (49)  
Accounts Receivable | Credit Concentration Risk | Largest Customer    
Trade and other receivables    
Orbital receivables, net $ 44  
Concentration risk, percentage 11.00%